function activateRaiseOrIconify(taskSource) {
    var service = dataEngine("tasks").serviceForSource(taskSource)
    var operation = service.operationDescription("activateRaiseOrIconify")
    var job = service.startOperationCall(operation)
}

function close(taskSource) {
    var service = dataEngine("tasks").serviceForSource(taskSource)
    var operation = service.operationDescription("close")
    var job = service.startOperationCall(operation)
}

function toggleMaximized(taskSource) {
    var service = dataEngine("tasks").serviceForSource(taskSource)
    var operation = service.operationDescription("toggleMaximized")
    var job = service.startOperationCall(operation)
}